NEC UPD78312 8-Bit Microcomputer Die Shot

Die shot of an 8-bit microcomputer (basically a microcontroller) from a sewing machine. Most of the program data was stored on a separate chip. The long two blocks at the right are rom too, but there’s only 8kb worth on the die.

datasheet: www.alldatasheet.com/datasheet-pdf/pdf/119045/NEC/UPD7831...

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